Improvement in hydrants



N.PETERS. PHOTQLITHOGRAPHER WASHINGTON D C UNITED STATES PATENT ENCE.

JOHN PRINGLE, OF JERSEY OIIY, NEW? JERSEY.

IMPROVEMENT IN HYDRANTS.

To @ZZ whom, it may concern:

Be it known that I, JOHN PRINGLE, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Hydrants; and I do hereby declare that the following is a full, clear, and exact description of the sameref erence being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a longitudinal vertical section ot'my invention, the plane of section being indicated by the line y y, Fig. 2. Fig. 2 is a horizontal section ot' the same, taken in the plane indicated by the line x x, Fig. l. Fig. 3 is a perspective view of onehalf ofthe slip-weight, which renders the stop cock selfoperating. Fig. 4 is an end elevation otthis weight.

Similar letters of reference in all the tigures indicate corresponding parts.

The object of this invention is a self-acting metallic hydrant capable of being closed by the action of a weight, and provided with a three-way cock to admit the water or other liquid from the supply to the delivery pipe, and allow the waste in the upper part of the delivery-pipe to run down into lthe ground, thereby preventing its freezing and saving the hydrant from injury.

The peculiar construction ot' my hydrant and its advantages will be readily understood from the following description.

A represents a case, made of cast-iron or any other suitable material, ot' any suitableI form or shape, to iuclose the working parts of the hydrant. B is the supply, and (l the delivery pipe. Ihe connection between these Iwo pipes is opened and closed by a cock, l), the plug ay of which is operated by means ot' a lever, b, secured to its thin end. A cap, c, which screws on the shell ofthe cock over the thick end of the plug, prevents the latter from getting loose, and said cap is held in place and prevented from unscrewing spontaneously by a thumb-screw, d, which allows of arresting said cap in any desired position. By means of the cap the plug can be set up tightv whenever it is required, so that the same will always work nicely and without leakage. The lever b is secured to the small end of the plug by means of a pin, or in any other suitable manner, and to its loose end a rod, e, is attached, which extends up through the case A, being provided with a knob or handle, f. The rod e forms the guide for the weight E, which is constructed of two parts that are dovetailed together, as clearly shown in Fig. 4, so that they can readily be taken apart and attached to the rod after all the parts of the hydrant have been put together. The dovetail which secures the two parts of the weight together is wedge-sh aped, as shown in Fig. 3, so that the two parts when properly put together, will tighten themselves up and will notbe liable to come apart spontaneously. The plug a is provided with three passages, g h i, which are so situated that when the passage g stands opposite the supply-pipe the passage h registers with the delivery-pipe, and the passage t' is so arranged that when the cock is closed the waste water remaining in the delivery-pipe will nd its way down through the hollow stem j into the ground. The lever b, which serves to operate the stop-cock, is so situated that said cock is closed when the rod e, by the action ot' the weight E, has been depressed to its lowest position. By raising the rod e to the position shown in Fig. l the passage g is brought opposite the supply-pipe, and the passage h opposite the delivery'pipe, and the cock is opened. In this position the passage t' is closed. On releasing the rod e the weight- E carries the lever It down to its lowest position, and the stop cock closes. 111 this position the passage t' is open, and the waste water is allowed to run down to the ground.

This hydrant is unsurpassed in durability. It can be easily repaired by (ligging it up and replacing the stop and waste cook at a very moderate charge. lt. is not liable to freeze, no water being allowed to remain in the pipes above ground, and it does not waste any water.

What l claim as new, and desire to secure by Letters Patent, is

1. The plug a., with three passages, g h t', and held in place by a cap, c, over its thick end, in combination with the lever b, rod c, slip-weight E, and pipes B C, all constructed and operating in the manner and for the purpose substantially as set forth.

2. The weight E, iliade in two parts andA united by a dovetail, in combination with the rod e and plug a, constructed and operating as and for the purpose directed.

JOHl\T PRINGLE.

Witnesses:

THos. L. J'. DOUGLAS, GEO. W. REED. 

